| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Mays | NYA | 5.74 | 192109071_BOS_NYA |
| Jesse Barnes | SFN | 3.21 | 192109060_ATL_SFN |
| Joe Oeschger | ATL | 1.62 | 192109081_PHI_ATL |
| Pete Alexander | CHN | 0.95 | 192109061_CHN_SLN |
| Rube Marquard | CIN | 0.37 | 192109070_CIN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dixie Davis | BAL | -3.84 | 192109070_CHA_BAL |
| Roy Wilkinson | CHA | -2.92 | 192109080_CHA_BAL |
| Rip Collins | NYA | -1.5 | 192109080_NYA_OAK |
| Jim Bagby | CLE | -1.21 | 192109070_DET_CLE |
| Hooks Dauss | DET | -1.07 | 192109080_DET_CLE |
Based on accumulated WAA for this season up to 1921-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.24 | Eppa Rixey | 262.7 | CIN |
| +008+ | 7.93 | George Mogridge | 256.7 | MIN |
| +009+ | 7.89 | Carl Mays | 291.3 | NYA |
| +013+ | 6.83 | Burleigh Grimes | 253.3 | LAN |
| +015+ | 6.38 | Bill Doak | 182.7 | SLN |
| +016+ | 6.2 | Jesse Barnes | 231.3 | SFN |
| +019+ | 5.68 | Sad Sam Jones | 262.7 | BOS |
| +022+ | 4.97 | Waite Hoyt | 238.3 | NYA |
| +023+ | 4.66 | Whitey Glazner | 207.7 | PIT |
| +024+ | 4.49 | Stan Coveleski | 272 | CLE |
| +026+ | 4.31 | Dana Fillingim | 206.3 | ATL |
| +027+ | 4.23 | Joe Oeschger | 268.7 | ATL |
| +028+ | 4.09 | Wilbur Cooper | 279.7 | PIT |
| +029+ | 4.01 | Pete Alexander | 212.3 | CHN |
| +034+ | 3.66 | Bill Sherdel | 114 | SLN |
| +035+ | 3.64 | Bill Pertica | 187 | SLN |
| +040+ | 3.46 | Dolf Luque | 266 | CIN |
| +041+ | 3.44 | Rube Marquard | 232.7 | CIN |
| +045+ | 2.9 | Benn Karr | 72.3 | BOS |
| +050+ | 2.37 | Earl Hamilton | 198.7 | PIT |
| +052+ | 2.36 | Clarence Mitchell | 151.3 | LAN |
| +058+ | 2.04 | Bullet Joe Bush | 202.3 | BOS |
| +065+ | 1.93 | Johnny Morrison | 104 | PIT |
| +066+ | 1.87 | Bob Shawkey | 205.7 | NYA |
| +075+ | 1.6 | Allen Russell | 158 | BOS |
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